Many companies have built their products on top of someone else's APIs, to have those APIs change, vanish, or develop charges later on. Do be aware of the pitfalls before you make yourself totally dependent on someone who does not have your best interests at heart.

They aren't doing any snooping on your private data here, just noting where different SSIDs are broadcasting. Unless your SSID name consists of your name, DOB, mother's maiden name, etc. you have nothing to worry about.